Copper prices are rebounding today after data on manufacturing activity in main consumer China boosted demand hopes. Three-month copper on the London Metal Exchange was up 1.17% (11:27 a.m. GMT+1) at $9,085 a tonne while the most traded April copper contract on the Shanghai Futures Exchange was up 1.7% at 69,870 yuan ($10,106.75) a tonne. […]